Scandium(III) triflate mediated intramolecular ring expansion of aziridines: a direct access to 4-aryltetrahydroisoquinolines
作者:Tummanapalli Satyanarayana、Parthasarathy Muthuraman、Dhanunjaya Naidu Vangapandu、Supriyo Majumder
DOI:10.1016/j.tetlet.2014.10.047
日期:2014.12
facile synthesis of 4-substituted tetrahydroisoquinolines has been developed by employing scandium(III) triflate mediated intramolecular ring expansion of aziridines. The meta-substituted electron-donating group on the benzene ring facilitates trapping of an in situ generated benzyl carbenium ion cation leading to the formation of tetrahydroisoquinolines.
通过使用三氟甲磺酸scan(III)介导的氮丙啶的分子内环扩展,已经开发了新颖的,高产率的4-取代的四氢异喹啉的简便合成方法。所述元生成在苯环便于在原位的捕集取代的给电子基团的苄基碳正离子阳离子导致四氢异喹啉的形成。